FWIW my non-1CHIP consoles are 60Hz, but I always have the hooks disabled, but I leave the auto-region patching on.
There was no 50Hz version of the SNES2/SFCjr., but there were 1CHIP 50Hz consoles with the eject button. As I recall the hardware is the same on 50Hz and 60Hz consoles with the exception of the lockout chip and the clock crystal.